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❏ TROUBLESHOOTING
• CD PART
Turn power on.
Is power on?
NO
Does initial
read work?
NO
Does it play?
NO
Does it output
audio?
NO
OK
NO
NO
Check the DISK circuit
YES
Check the Laser
YES
Check the focus circuit
YES
Check the TRAKING servo.
NO
NO
- 2-2 -
Check power supply circuit.
PN508 PIN8, 6.2V
PN508 PIN7, 5V
IC503 PIN2, 3.3V
NO
Check the connector
PN503, PN504, PN507
Check the tracking servo.
Check the PN508 PIN1, 3
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